可以用正则$jsonStr = '{"db":"[{"0":"9","id":"9"},{"0":"9","id":"9"},]"}';$jsonStr = preg_replace('/[\'"](\[.*?\])[\'"]/iU', '$1', $jsonStr);// 去除json串中，数组外的引号，将形如"[{...}]"替换成[{...}]$jsonStr = preg_replace('/,\s*\]/', ']', $jsonStr);// 去除json串中多余的逗号 字符串替换：$jsonStr = str_replace('"[', '[', $jsonStr);$jsonStr = str_replace(',]"', ']',...
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